John William Ferrell (; born July 16, 1967) is an American actor, comedian, producer, writer and businessman. He first established himself in the mid-1990s as a cast member on the NBC sketch comedy show Saturday Night Live, and has subsequently starred in comedy films such as Anchorman: The Legend of Ron Burgundy (2004), Talladega Nights (2006), Step Brothers (2008), The Other Guys (2010) and Anchorman 2: The Legend Continues (2013), all but one of which he co-wrote with his comedy partner Adam McKay. The two also founded the comedy website Funny or Die in 2007. Other film roles include Elf, Old School (both 2003), Blades of Glory (2007), Daddy's Home (2015), and the animated films Megamind (2010) and The Lego Movie (2014).
Ferrell is considered a member of the "Frat Pack", a generation of leading Hollywood comic actors who emerged in the late 1990s and the 2000s, including Jack Black, Ben Stiller, Steve Carell, Vince Vaughn, and brothers Owen and Luke Wilson. He received an Emmy Award nomination for his work on Saturday Night Live, and three Golden Globe Award nominations for acting in The Producers (2005) and Stranger than Fiction (2006) and for producing Vice (2018). He was also named the best comedian of 2015 in the British GQ Men of the Year awards. Ferrell received a star on the Hollywood Walk of Fame on March 24, 2015.